可变周期运行 variable cycle operation
非周期运行 aperiodic motion
运行周期 Run Cycle ; operational cycle ; operation cycle ; cycle of operation
变周期运行 operation with changed cycles
长周期运行 long period operation
装置长周期运行 Long period operation of unit
周期性运行 cycling service ; cyclic service ; cycling operation
周期性运行方式 periodical duty
轨道运行周期 orbital period
卫星运行周期 satellite period of revolution
这一糟糕的经济周期运行轨迹，部分来说与时间很巧合。
The miserable economic track record is, in part, a quirk of timing.
改用该燃烧器后，进一步保证了锅炉安全、经济和长周期运行。
After using that burner, the boiler safety, economic and long period operation were secured further.
延迟焦化加热炉是延迟焦化装置安全、长周期运行的关键设备。
Coking furnace performance is critical to the safety and long period running of delayed coking unit.
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